ast: use more suitable types in a few ast nodes

The int ones cannot be signed (they come as such from the scanner, and
NEGATE is never applied to them).

The uint32_t one is really an atom, but presumably the type was never
converted to xkb_atom_t.

Signed-off-by: Ran Benita <ran234@gmail.com>

src/xkbcomp/ast-build.c

@@ -356,7 +356,7 @@ SymbolsCreate(xkb_atom_t keyName, VarDef *symbols)
 }
 
 GroupCompatDef *
-GroupCompatCreate(int group, ExprDef *val)
+GroupCompatCreate(unsigned group, ExprDef *val)
 {
     GroupCompatDef *def = malloc(sizeof(*def));
     if (!def)
@@ -372,7 +372,7 @@ GroupCompatCreate(int group, ExprDef *val)
 }
 
 ModMapDef *
-ModMapCreate(uint32_t modifier, ExprDef *keys)
+ModMapCreate(xkb_atom_t modifier, ExprDef *keys)
 {
     ModMapDef *def = malloc(sizeof(*def));
     if (!def)
@@ -404,7 +404,7 @@ LedMapCreate(xkb_atom_t name, VarDef *body)
 }
 
 LedNameDef *
-LedNameCreate(int ndx, ExprDef *name, bool virtual)
+LedNameCreate(unsigned ndx, ExprDef *name, bool virtual)
 {
     LedNameDef *def = malloc(sizeof(*def));
     if (!def)

src/xkbcomp/ast-build.h

@@ -98,16 +98,16 @@ SymbolsDef *
 SymbolsCreate(xkb_atom_t keyName, VarDef *symbols);
 
 GroupCompatDef *
-GroupCompatCreate(int group, ExprDef *def);
+GroupCompatCreate(unsigned group, ExprDef *def);
 
 ModMapDef *
-ModMapCreate(uint32_t modifier, ExprDef *keys);
+ModMapCreate(xkb_atom_t modifier, ExprDef *keys);
 
 LedMapDef *
 LedMapCreate(xkb_atom_t name, VarDef *body);
 
 LedNameDef *
-LedNameCreate(int ndx, ExprDef *name, bool virtual);
+LedNameCreate(unsigned ndx, ExprDef *name, bool virtual);
 
 IncludeStmt *
 IncludeCreate(struct xkb_context *ctx, char *str, enum merge_mode merge);

src/xkbcomp/ast.h

@@ -299,7 +299,7 @@ typedef struct {
 typedef struct {
     ParseCommon common;
     enum merge_mode merge;
-    int group;
+    unsigned group;
     ExprDef *def;
 } GroupCompatDef;
 
@@ -314,7 +314,7 @@ typedef struct {
 typedef struct {
     ParseCommon common;
     enum merge_mode merge;
-    int ndx;
+    unsigned ndx;
     ExprDef *name;
     bool virtual;
 } LedNameDef;